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储气井是一种压力容器,也是地下压力容器的典型代表。由于开发储气井的理念来源于油气井,因此储气井具有常规压力容器所不具备的特性并存在很多先天不足。文章针对储气井的现状,剖析了储气井在材料、设计、制造、检验检测等各环节存在的问题,并对储气井的健康发展提出了改进建议。 相似文献
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我国虚拟生态工业园的发展及前景展望 总被引:1,自引:0,他引:1
虚拟生态工业园是一种新型的生态工业组织形式,是生态工业园区在地理位置上的拓展,其建立可以有效缓解工业发展与资源环境的矛盾;本文介绍了虚拟生态工业园的特点及在我国的发展概况,指出我国今后一段时期要重点发展虚拟和共区相结合的生态工业园体系,走新型工业化道路。 相似文献
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Behavioural models for both humans and other animals often assume economic rationality on the part of decision makers. Economic
rationality supposes that outcomes can be assigned objective values within a stable valuation framework and that choices are
made to maximise a decision maker’s expected payoff. Yet, both human and animal behaviour is often not economically rational.
Here, we compare economically rational making strategies with a strategy (trade-off contrasts) that has been proposed to account
for decision-making behaviour in humans that departs of axiomatic rationality. We model the fitness of these strategies in
a simple environment where choices are made on repeated occasions, there is stochastic fluctuation in the choices available
at any given time, and uncertainty about what choices will be available in the future. Our results show that, for at least
some of the model parameter space, non-rational decision strategies achieve higher fitness than economically rational strategies.
The differences were comparable in magnitude to selection differentials observed in nature. 相似文献
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有机磷农药残留检测技术研究进展 总被引:10,自引:0,他引:10
综述了近年来有机磷农药残留检测技术的研究进展,其检测方法主要有色谱法、降解酶法、化学发光技术和生物传感技术.详细介绍了几种生物传感器(如酶传感器、微生物传感器、免疫传感器、压电传感器、纳米传感器和液晶型化学传感器)在有机磷农药检测中的应用,并展望了这一领域的发展趋势. 相似文献